Bad eta expand during building

[Simon Peyton-Jones]

don't worry abou thtem.  I keep meaning to look into it again, but it's
harmless I think. Certainly long standing

| -----Original Message-----
| From: glasgow-haskell-bugs-bounces at haskell.org
[mailto:glasgow-haskell-bugs-
| bounces at haskell.org] On Behalf Of Axel Simon
| Sent: 16 March 2005 13:44
| To: glasgow-haskell-bugs at haskell.org
| Subject: Bad eta expand during building
| 
| Hi,
| 
| I'm just trying to compile ghc 6.4. I was a bit put off by ton's of
"Bad
| eta expand" messages scrolling off my screen. It looks like this:
| 
| Bad eta expand
|     1
|     __coerce GHCziBase.Z0T{(w) tc 40}
|     (CmmParse.zgzg{v rej3}
|        @ GHCziBase.Z0T{(w) tc 40}
|        @ GHCziBase.Z0T{(w) tc 40}
|        (__coerce CmmParse.ExtCode{tc r3CA} happyzuxzu1{v a3WU})
|        (__coerce CmmParse.ExtCode{tc r3CA} happyzuxzu2{v a3WT})
|        (__coerce CmmParse.Env{tc r3CI} eta{v sb4W}))
|     GHCziBase.Z0T{(w) tc 40}
| <<ghc: 1194327916 bytes, 3628 GCs, 13332977/21631780 avg/max bytes
| residency (11 samples), 57M in use, 0.00 INIT (0.00 elapsed), 5.13 MUT
| (39.72 elapsed), 2.47 GC (2.59 elapsed) :ghc>>
| ../../ghc/compiler/stage1/ghc-inplace -H16m -O  -istage2/utils  -
| istage2/basicTypes  -istage2/types  -istage2/hsSyn  -istage2/prelude
-
| istage2/rename  -istage2/typecheck  -istage2/deSugar  -istage2/coreSyn
| -istage2/specialise  -istage2/simplCore  -istage2/stranal  -
| istage2/stgSyn  -istage2/simplStg  -istage2/codeGen  -istage2/main  -
| istage2/profiling  -istage2/parser  -istage2/cprAnalysis  -
| istage2/compMan  -istage2/ndpFlatten  -istage2/iface  -istage2/cmm  -
| istage2/nativeGen  -istage2/ghci -Istage2 -DGHCI -package template-
| haskell -package readline -DUSE_READLINE -cpp -fglasgow-exts -fno-
| generics -Rghc-timing -I. -IcodeGen -InativeGen -Iparser -package unix
-
| package Cabal -recomp -Rghc-timing  -H16M '-#include "hschooks.h"'
-c
| utils/FiniteMap.lhs -o stage2/utils/FiniteMap.o  -ohi
| stage2/utils/FiniteMap.hi
| 
| I don't know which files this refers to as there were way too many of
| these messages to scroll back. But the next file is obviously
| FiniteMap.lhs
| 
| Does this message have to scare me? And if yes, why does the build
| proceed?
| 
| Axel.
| 
| 
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